63956512560 has 80 divisors (see below), whose sum is σ = 208700213760. Its totient is φ = 16157433600.

The previous prime is 63956512553. The next prime is 63956512577. The reversal of 63956512560 is 6521565936.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7008216 + ... + 7017335.

It is an arithmetic number, because the mean of its divisors is an integer number (2608752672).

Almost surely, 2^63956512560 is an apocalyptic number.

63956512560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63956512560 is an abundant number, since it is smaller than the sum of its proper divisors (144743701200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63956512560 is a wasteful number, since it uses less digits than its factorization.

63956512560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025586 (or 14025580 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 48.

The spelling of 63956512560 in words is "sixty-three billion, nine hundred fifty-six million, five hundred twelve thousand, five hundred sixty".